Features: Wide range of applications: EM285 circuit tester can be used to test continuity, test voltage polarity, check lamp, check electric motor, track and locate shorts, test for bad ground contacts, etc. Long Test Lead: The lead length is approximately 16 feet, allowing you to easily test any electrical system. Short Circuit Protection: The unit has short circuit protection and can instantly test for bad ground contacts. Easy Operation: After simply plugging the unit into a the vehicle battery, the auto technician can conduct positive or negative battery current to the tip by flipping the power switch forward or reverse. 6-24V Complete Test Kit DC: Do not use on AC voltage. Opera Instructions tion: Unwind the cable from the unit Attach the red clip to the positive terminal of the vehicle battery Attach the black clip to the negative terminal of the vehicle battery vehicle Features: Color red Operating voltage: 6-24V DC Cable length: 16 feet Overload protection: 8A (When the current exceeds 8A, this item will automatically disconnect the current.) Package size: 26.5 * 9 * 4 cm Package weight: 320g Package List: 1 * Circuit Tester